University of Phoenix Stadium is a multi-purpose stadium located in Glendale, Arizona. It serves as the home field for the Arizona Cardinals, a professional football team in the NFL. The stadium is known for its unique design, featuring a retractable roof and a movable grass field, allowing it to host various events, including concerts and college football games. Opened in 2006, the stadium has a seating capacity of approximately 63,400, which can be expanded for larger events. It has hosted significant events, such as the Super Bowl and the Fiesta Bowl, making it a prominent venue in the sports and entertainment landscape.